When making manual updates to files in SBM, we like to make copies of the original. We, also, tend to leave these copies in the original directory. This practice can cause issues when making updates to JBoss / Tomcat files.
XML, WAR and JAR files are all files that can get loaded even if they have a different name. We often think the update failed, when in fact JBoss / Tomcat actually loads a different file.
To solve this issue, save the copy to your desktop or documents folder for back up.